On the 150th anniversary (in 1993) of the beginning of the South Church, Mary Darling (a South Church elder) wrote this article describing the period 1843 to 1900 of the South Kirk (Church) using information taken from the following sources.
- The Annals of Penicuik by John J. Wilson
- Penicuick Free Church Deacon’s Court Minute Books - volumes 1 and 2
- Penicuick Free Church Session Records - volume 2
- Pennycuick Free Church Association Treasurer’s Reports
- Penicuik Historical Society - History of Penicuik booklets - volume 1
